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Theorem
Equiv.Perm.IsThreeCycle.ne_one
Modification history
2026-05-10 10:59
Mathlib/GroupTheory/Perm/Cycle/Type.lean
chore(GroupTheory/SpecificGroups/Alternating): deprecate old proof of simplicity of A_5 (#38670) …
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Equiv.Perm.IsThreeCycle.ne_one
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